Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector
文献类型:期刊论文
作者 | TEXONO Collaboration |
刊名 | JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
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出版日期 | 2008 |
卷号 | 35期号:7 |
关键词 | NEUTRAL-CURRENT DARK-MATTER EXCITATION SCATTERING NEUTRINOS DEUTERONS REACTOR FUTURE PROTON |
通讯作者 | Liao, HY (reprint author), Acad Sinica, Inst Phys, Taipei 115, Taiwan. |
英文摘要 | The (73)Ge*(1/2(-)) metastable state decays with a very characteristic signature which allows it to be tagged event-by-event. Studies were performed using data taken with a high-purity germanium detector in a low-background laboratory near a nuclear power reactor core where the (nu) over bar (e) flux was 6.4 x 10(12) cm(-2) s(-1). The measured average and equilibrium production rates of (73)Ge*(1/2-) were (8.7 +/- 0.4) and (6.7 +/- 0.3) kg(-1) day(-1), respectively. The production channels were studied and identified. By studying the difference in the production of 73Ge*(1/2-) between the reactor ON and OFF spectra, limiting sensitivities in the range of similar to 10(-42) to 10(-43) cm(2) for the cross sections of neutrino-induced nuclear transitions were derived. The dominant backgrounds are due to beta(-) decays of cosmic-ray-induced (73)Ga. The prospects of enhancing the sensitivities at underground locations are discussed. |
学科主题 | Physics |
类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000257178700018 |
公开日期 | 2016-02-26 |
源URL | [http://ir.ihep.ac.cn/handle/311005/212858] ![]() |
专题 | 高能物理研究所_实验物理中心 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | TEXONO Collaboration. Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2008,35(7). |
APA | TEXONO Collaboration.(2008).Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,35(7). |
MLA | TEXONO Collaboration."Production and decay of the (73)Ge*(1/2(-)) metastable state in a low-background germanium detector".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 35.7(2008). |
入库方式: OAI收割
来源:高能物理研究所
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